GetTick() and HAL_Delay(xxx);

[XooM]

When I give the delay time greater than 300 for the code below (500ms or 1000ms), GetTick or HAL_Delay(500); functions do not work.

If I make the time 100ms, 200ms or 300ms, it works.

When I want to control the delay at longer times, the program does not work.

Where should I look for the problem?
I am using STM32F030C6T6.

	 if(PA10_On==0)
	 {
		 Tick_PA10_On = HAL_GetTick();
		 PA10_On=1;
	 }

	 if ( PA10_On==1 &&(HAL_GetTick() - Tick_PA10_On) >= 300)
	 	 {
		 	 HAL_GPIO_TogglePin(GPIOB, GPIO_PIN_14);
		 	 PA10_On=0;
	 	 }

For example, this code below does not work.

HAL_GPIO_WritePin(PA10_GPIO_Port,PA10_Pin,GPIO_PIN_SET);
HAL_Delay(500);
HAL_GPIO_WritePin(PB14_GPIO_Port,PB14_Pin,GPIO_PIN_RESET);
HAL_Delay(500);

But this below code works.

HAL_GPIO_WritePin(PA10_GPIO_Port,PA10_Pin,GPIO_PIN_SET);
HAL_Delay(200);
HAL_GPIO_WritePin(PB14_GPIO_Port,PB14_Pin,GPIO_PIN_RESET);
HAL_Delay(200);

 Waits of 300ms and below work.

[Andrew Neil]

---

@XooM wrote:

When I give the delay time greater than 300 for the code below (500ms or 1000ms), GetTick or HAL_Delay(500); functions do not work.

---

What do you mean by, "do not work"?

• Don't give any delay at all?
• Give an excessive delay?
• Crash?
• Other??

[XooM]

HAL_GPIO_WritePin(PA10_GPIO_Port,PA10_Pin,GPIO_PIN_SET);
HAL_Delay(200);
HAL_GPIO_WritePin(PB14_GPIO_Port,PB14_Pin,GPIO_PIN_RESET);
HAL_Delay(200);

If I write the code above, the PA10 pin goes HIGH and LOW at 200ms intervals.

but the duration is a larger value like 400ms 500ms. It remains in the HIGH position.

[Andrew Neil]

Still not clear what is actually happening.

Are you saying that, with a delay value over ~ 400, your code just "stops" at the HAL_Delay() call?

ie, your code becomes equivalent to:

HAL_GPIO_WritePin(PA10_GPIO_Port,PA10_Pin,GPIO_PIN_SET);
while(1); // Code "sticks" here ?

 

[gbm]

Show the declarations of all the variables used in your code, like Tick_PA10_On.

Show all the warnings you get while compiling the code. Correct your code to remove all the warnings.

Is the watchdog activated? If yes, then turn it off.